JP2015204506A - camera control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a camera control system having high degree of freedom capable of leaving a detailed video record even with a limited number of installed cameras while detecting deviation from steady work, and capable of relatively easily looking for the detailed video record of an actual problematic work later.SOLUTION: A camera control system configured to perform pan/tilt control of a camera for shooting a monitored object remotely is provided with control means for automatically executing the pan/tilt control of the camera in conjunction with the progress of a series of preset work procedure.

Description

  The present invention relates to a camera control system, and more particularly to improvement of pan / tilt control of a work recording camera.

  Conventionally, for example, in factories engaged in the manufacturing industry, multiple cameras have been installed for the purpose of confirming work progress from a remote location and recording work images, etc., and confirmation of work details and evidence images when an emergency occurs. In order to use it as a document, work images taken with these cameras are recorded.

  FIG. 3 is a block diagram illustrating an example of a conventional camera control system. In FIG. 3, cameras 1 a and 1 b are configured to be able to perform pan / tilt control remotely from the outside, and pan / tilt control is performed by a pan / tilt control signal transmitted from the camera control device 2. Is done.

  When the pan / tilt control of the cameras 1a and 1b by the camera control device 2, for example, automatic scanning is performed according to a program designed in advance so as to circulate through the photographing areas in a predetermined cycle, or the monitoring screen is monitored. A manual operation is performed as necessary so that a more detailed image can be confirmed when a worker who has detected a sign of abnormality.

  The camera 1a is controlled so that the work area around the tank A is mainly photographed as the monitoring object 4a, and the camera 1b is mainly controlled so as to photograph the work area around the tank B as the monitoring object 4b. Videos taken by these cameras 1a and 1b are sequentially recorded in the video surveillance recording device 3.

  Patent Document 1 discloses a camera control system capable of performing control of a plurality of cameras displayed on a map, improving the operability of pan / tilt camera control and simultaneously confirming the pan / tilt shooting direction. The technology about is described.

Japanese Patent Laid-Open No. 10-341428

  However, according to the conventional configuration, for example, when a recorded video is evaluated from the viewpoint of recording what kind of work a certain worker has performed, it is somewhat insufficient.

  For example, even if the status of work by a worker who deviates from the standardized work that has been standardized during automatic scanning is recorded as the recorded video of the video monitoring and recording device 3, the monitoring worker can view the deviation work screen in real time. If the user has overlooked, it is difficult to leave a detailed video record as if the specific work content of the departure work was zoomed in.

  Although it is possible to leave a detailed video about the work performed by the worker by increasing the number of cameras, the cost for installation and maintenance increases in proportion to the number of cameras installed, and the video recording capacity also increases. This is due to the fact that a fairly wide range of images must be taken with a limited number of cameras installed.

  The present invention solves such problems, and its purpose is to leave a detailed video record even with a limited number of installed cameras and to detect deviations from regular work, and to perform actual work with problems. It is to realize a camera control system having a high degree of freedom in which a detailed video recording can be searched relatively easily later.

In order to achieve such an object, the invention described in claim 1 of the present invention is:
In a camera control system configured to perform pan / tilt control of a camera that remotely images a monitoring target,
Control means for automatically executing pan / tilt control of the camera in conjunction with the progress of a series of preset work procedures is provided.

The invention described in claim 2 is the camera control system according to claim 1,
The monitoring target is provided with a sensor for detecting a mechanical change occurring in the monitoring target, and an output of the sensor is input to the control means.

A third aspect of the present invention is the camera control system according to the second aspect,
A deviation from a predetermined work procedure process is detected based on the output of the sensor.

According to a fourth aspect of the present invention, in the camera control system according to any one of the first to third aspects,
The control means controls the start and end of the recording of the monitoring target video imaged by the camera in conjunction with the progress of the series of work procedures.

  According to the present invention, even with a limited number of cameras, a detailed video recording can be left and deviation from steady work can be detected, and the camera pan / tilt control is performed in conjunction with the progress of the work procedure. For example, when a problem occurs due to an abnormality in process data such as PH and conductivity or a quality inspection, a detailed video recording of the actual work in question can be relatively easily found later.

It is a block diagram which shows one Example of this invention. It is explanatory drawing which shows the specific example of the database used by this invention. It is a block diagram which shows an example of the conventional camera control system.

  FIG. 1 is a block diagram showing an embodiment of the present invention, and the same reference numerals are given to portions common to FIG. In FIG. 1, the control personal computer 5 performs pan / tilt control of the cameras 1 a and 1 b via the camera driving device 2 and the video surveillance recording device 3.

  The control personal computer 5 transmits a signal for controlling the shooting direction and zooming by pan / tilt control of the cameras 1a and 1b to the camera driving device 2, and the camera 1a and 1b for the video surveillance recording device 3. A signal for controlling the start / end of the recorded video is transmitted.

  The control personal computer 5 is provided with a work procedure storage unit 51, a work progress management unit 52, a camera drive control unit 53, a monitoring record control unit 54, a communication unit 55, and the like.

  A database 6 is connected to the control personal computer 5. In the database 6, for example, as shown in FIG. 2A, work locations corresponding to standard work are registered in advance and associated with each other, and as shown in FIG. It is assumed that the correspondence between the recording state and the direction is also associated with each other.

First, in FIG.
1) Carrying out the starting operation of raw materials for tank A at a predetermined set time “**: **: **” 2) After completing the input of raw materials, the predetermined setting time “**: **: *” Return to the initial position at “*” 3) The blending operation is performed in the mixing tank B or C at the predetermined set time “**: **: **”, but it is registered that it is not specified.

On the other hand, FIG.
1) Camera A is in a recording state and faces the direction of tank A. 2) Camera B is in a stopped state and registered as an initial position.

  Further, the control personal computer 5 has an open / close limit switch 7a installed at the opening of the inlet of the tank A which is the center of the monitoring object 4a and an opening of the inlet of the tank B which is the center of the monitoring object 4b. The open / close limit switch 7b is also connected.

  A display operation terminal 8a is provided in the vicinity of the tank A serving as the center of the monitoring object 4a, and a display operation terminal 8b is provided in the vicinity of the tank B serving as the center of the monitoring object 4b. These display operation terminals 8a and 8b are man-machine interfaces such as a tablet terminal for an operator to access the control personal computer 5, and exchange data with the control personal computer 5 through wireless communication. It has a function.

  In such a configuration, when a series of processing by the program stored in the work procedure storage unit 51 is started and executed based on the control of the control personal computer 5, the work progress management unit 52 sequentially indicates the progress of the work procedure processing. Check and manage.

  When the pan / tilt control signals of the cameras 1 a and 1 b are associated in the series of processing, the pan / tilt control signals are output to the camera drive control unit 53.

  When the pan / tilt control signal is input from the work progress management unit 52, the camera drive control unit 53 determines at least one of the cameras 1a and 1b corresponding to the camera drive device 2 according to the pan / tilt control signal. Perform a fixed pan / tilt.

  The monitoring / recording control unit 54 controls the video monitoring / recording apparatus 3 to record and record the video shot by the cameras 1a and 1b subjected to pan / tilt control.

  The communication unit 55 executes communication processing for exchanging predetermined data between the control personal computer 5 and external terminals such as the display operation terminals 8a and 8b.

  Here, the work progress management unit 52 associates the progress status of the predetermined work procedure process with the outputs of the open / close limit switches 7a and 7b, so that, for example, there is no work instruction for charging raw materials, but the preparation tank If the opening is open, a warning is issued and the camera is swung to take a picture of the tank opening.

  In this way, by linking with the work instruction and the performance management function, it is possible to effectively use a small number of cameras and reduce the number of cameras necessary for monitoring.

  Even with a small number of cameras, detailed and clear work records can be kept by automatically turning and zooming up each camera individually.

  By reducing the number of cameras, the cost for installing and maintaining the cameras can be reduced.

  By associating the work instruction and results management function with the sensors attached to the monitored equipment, it is possible to detect deviations from the regular work at an early stage.

  Since the work procedure and the video can be easily associated with each other, the time required for the video search after shooting can be shortened.

  Furthermore, it is possible to appropriately start and end the recording in accordance with the progress of a series of work, and to reduce the recording capacity of the captured video.

  In the above-described embodiment, an example of remotely monitoring a series of operations has been described. However, the present invention is also effective for interlocking a camera with a work management and performance management function of a production management system in the manufacturing industry.

  As is clear from the above description, according to the present invention, since the setting method is not fixed, the operator has a high degree of freedom to perform the setting operation of the work recording system with the optimum setting method when necessary. Work record system can be provided.

DESCRIPTION OF SYMBOLS 1a, 1b Camera 2 Camera drive device 3 Image | video monitoring recording device 4a, 4b Monitoring object 5 Control personal computer 6 Database 7a, 7b Open / close limit switch 8a, 8b Display operation terminal (tablet)

Claims (4)

In a camera control system configured to perform pan / tilt control of a camera that remotely images a monitoring target,
A camera control system comprising control means for automatically executing pan / tilt control of the camera in conjunction with progress of a series of preset work procedures.   2. The camera control system according to claim 1, wherein the monitoring target is provided with a sensor for detecting a mechanical change occurring in the monitoring target, and an output of the sensor is input to the control means.   The camera control system according to claim 2, wherein a deviation from a predetermined work procedure process is detected based on an output of the sensor.   4. The control unit according to claim 1, wherein the control unit controls start and end of recording of the monitoring target video imaged by the camera in conjunction with progress of the series of work procedures. 5. The camera control system described in.